Year	Number
2007-01-01	281276
2008-01-01	334753
2009-01-01	296388
2010-01-01	266618
2011-01-01	236005
2012-01-01	235800
2013-01-01	222847
2014-01-01	227537
2015-01-01	242593
2016-01-01	238796
2017-01-01	246751